Usually about three times as much, but if a recipe calls for fresh, do your best to use fresh. Dried rosemary is one of those herbs that does not do very well dried. Fresh vs dried makes a huge difference.
Also, depending on the recipe, if you're using dried rosemary, don't leave it in the food. Let it sit to soak the flavor in and then strain/take it out.
To substitute fresh rosemary for dried in a recipe, use three times the amount of fresh rosemary as the recipe calls for dried. For example, if the recipe calls for 1 teaspoon of dried rosemary, use 3 teaspoons of fresh rosemary. Remember to finely chop the fresh rosemary before adding it to the recipe for best results.
For rosemary, the ratio is three to one, fresh chopped to dried. So if your recipe calls for 2 tsp. of dried rosemary and you would rather use fresh, you will need three times as much, or two tablespoons of fresh chopped rosemary leaves.
1 tablespoon fresh rosemary equals 1 teaspoon dried
4 tsp of dried rosemary equals 1/4 cup fresh.
Approximately one teaspoon of dried rosemary equals one tablespoon of fresh. (Approx. 1 tsp dry = 1 Tbsp fresh)
For fresh rosemary substitute 1/4 tsp dried rosemary for each tsp fresh required Or equal amounts of oregano OR basil. For dried rosemary substitute: Dried savory, tarragon, or thyme.
One small sprig of rosemary converts to 1/2 a teaspoon of dried rosemary.
Rosemary is an aromatic herb, most often used in cooking. You can find dried rosemary in the spice section of your grocery store. Grocery stores also carry fresh rosemary sprigs, if that's what your recipe calls for. Rosemary is also grown outdoors as an ornamental plant, often as part of an herb garden.
Typically, 1 tablespoon of fresh rosemary leaves can be roughly equivalent to 1 teaspoon of dried rosemary.
Fresh parsley can be used as a substitute for dried parsley in recipes.
To substitute fresh basil for dried in a recipe, use three times the amount of fresh basil as the recipe calls for dried. For example, if the recipe calls for 1 teaspoon of dried basil, use 3 teaspoons of fresh basil. Chop the fresh basil finely before adding it to the recipe for the best flavor.
It takes about 4 weeks. After harvesting rosemary stems, hang in a group of 8, and hang in a dry, dark place. Then store in a air tight jar.